[MySQL] Access denied for user

```

[root@localhost ~]# mysql

ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

```

http://mustgeorge.blogspot.tw/2011/11/mysql-error-1045-28000-using-password.html

https://dev.mysql.com/doc/refman/5.7/en/adding-users.html

# creat user

先使用root登入

```

[root@localhost ~]# mysql -u root -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 11

Server version: 5.7.18 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> CREATE USER 'eric_tu'@'localhost' IDENTIFIED BY 'Eric_tu168';

Query OK, 0 rows affected (0.02 sec)

```

```

mysql> GRANT ALL PRIVILEGES ON *.* TO 'eric_tu'@'localhost';

Query OK, 0 rows affected (0.01 sec)

```

切回 eric_tu@

```

[eric_tu@localhost DoctrineToutorial]$ mysql -u eric_tu -p

Enter password:

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 14

Server version: 5.7.18 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

```